(2009) Service Advisory 0915 Rev A: Navigation suspending during non-precision approaches

AFFECTED PRODUCTS

All Garmin G1000, G900X, G950, Perspective®, and Prodigy™ Integrated Avionics Systems with GDU software version 7.0 or later and all GPS 400W, GNC 420W, GNS 430W, GPS 500W, and GNS 530W Navigation Systems are affected.

DESCRIPTION

This Service Advisory is intended to clarify operation of Garmin’s GPS navigation systems with regard to certain non-precision approach procedures. To enable the system to provide approach guidance to the end of the runway for non-precision approaches, some non-precision approach data contain a runway threshold waypoint that is used as the missed approach point (MAP). These approaches may also include a non-published navigation leg from this waypoint to the published MAP in the approach navigation sequence. If this navigation leg is behind the aircraft when the missed approach procedure is activated, waypoint sequencing may remain suspended even if the SUSP soft key or OBS key has already been pressed once.

PILOT ACTION

If waypoint sequencing is suspended as evidenced by the SUSP annunciation, press the SUSP soft key or the OBS key to extinguish the SUSP annunciation and resume waypoint sequencing. It may be necessary to press the SUSP soft key or OBS key more than once to resume waypoint sequencing on the missed approach procedure.

It is the pilot’s responsibility to comply with any altitude restrictions before changing course for the Missed Approach Procedure.

RESOLUTION

No software changes are required.